Alameda County Mosquito Abatement District conducts ground-based larvicide and adulticide treatment applications to manage mosquito populations and protect public health in Alameda County. These treatments are an important part of our comprehensive integrated vector management program.  Scheduled treatments may be canceled due to unstable weather conditions or other unforeseen reasons.

Latest Treatment Update Notifications

September 26th 2025 New detection of multiple Aedes aegypti mosquitoes prompt larval treatment on September 26th in Jensen and Windmill Springs neighborhoods. - Alameda County Mosquito Abatement District

September 5th 2025 Larval treatment for Aedes aegypti scheduled for Sept 5th in Altamont Creek neighborhood of Livermore - Alameda County Mosquito Abatement District